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On-Board Diagnostic - Engine Control System (2 Of 6)
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DTC P0116-00: ECT Sensor Circuit Range/Performance Problem
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Function Explanation (DTC Detection Outline)
Function Explanation (DTC Detection Outline)
If the engine coolant temperature detected by the ECT sensor is not rising 3°C {5°F} or more during a 5 min period after the engine is started, the PCM determines an ECT sensor malfunction and stores a DTC.
Courtesy of MAZDA MOTORS CORP.